Just got fitted for Mizuno MP15 irons and I can tell you they are fantastic sticks ! I was playing Mizuno MP60's for 8 years so it was time to get current . We came to a mutual agreement that the KBS Tour stiff shaft worked best with these irons. I set them up with 2 degrees upright and so far I have been hitting my irons much more solid and the misses are much better. I highly recommend these irons.